Malicious PDF — malware analysis report

Static analysis result for SHA-256 5e43471109542eda…

MALICIOUS

PDF

34.6 KB Created: 2021-06-19 05:16:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 31b262cb1f46260eacea1c6d49c53aee SHA-1: a192378da9eb782a00863f902f3f316626070e05 SHA-256: 5e43471109542eda474128141f4284d1c48546c4a00083233d0e2311d8ba9ad2
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting 'game hacks' and 'generators'. The heuristic firings indicate that the PDF links to known malicious redirectors and is flagged by an ML classifier. While no scripts were explicitly extracted, the nature of the lures suggests a phishing or scam attempt to drive traffic to potentially malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://netcdn.co/app/431946152/roblox-weapon-hack-game-hack In PDF document text
    • https://www.myeresults.ng/ci/userfiles/files/free-robux-kid-friendly_GM431946152.pdfIn PDF document text
    • https://www.myeresults.ng/ci/userfiles/files/free-promo-codes-for-coin-master_GM406889139.pdfIn PDF document text
    • https://www.myeresults.ng/ci/userfiles/files/coinmaster_GM406889139.pdfIn PDF document text
    • https://www.myeresults.ng/ci/userfiles/files/roblox-esper-hack_GM431946152.pdfIn PDF document text
    • https://www.myeresults.ng/ci/userfiles/files/roblox-admin-hack-no-script_GM431946152.pdfIn PDF document text
    • https://www.myeresults.ng/ci/userfiles/files/minecraft-free-reddit_GM479516143.pdfIn PDF document text
    • https://www.myeresults.ng/ci/userfiles/files/free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • https://www.myeresults.ng/ci/userfiles/files/free-spins-and-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://www.myeresults.ng/ci/userfiles/files/roblox-comment-cheats_GM431946152.pdfIn PDF document text
    • https://www.myeresults.ng/ci/userfiles/files/how-do-you-get-free-robux-without-verification_GM431946152.pdfIn PDF document text
    • https://www.myeresults.ng/ci/userfiles/files/minecraft-pocket-edition-apk-free-download_GM479516143.pdfIn PDF document text
    • https://www.myeresults.ng/ci/userfiles/files/is-there-a-free-coding-platform-for-roblox_GM431946152.pdfIn PDF document text
    • https://www.myeresults.ng/ci/userfiles/files/best-tricks-co-robux_GM431946152.pdfIn PDF document text
    • https://www.myeresults.ng/ci/userfiles/files/how-to-get-free-robux-2021-not-patched_GM431946152.pdfIn PDF document text
    • https://www.myeresults.ng/ci/userfiles/files/how-to-hack-coin-master-facebook_GM406889139.pdfIn PDF document text
    • https://www.myeresults.ng/ci/userfiles/files/coin-master-free-coins-link-2021-deutsch_GM406889139.pdfIn PDF document text
    • https://www.myeresults.ng/ci/userfiles/files/robux-apk_GM431946152.pdfIn PDF document text
    • https://www.myeresults.ng/ci/userfiles/files/minecraft-launcher-download-free_GM479516143.pdfIn PDF document text
    • https://www.myeresults.ng/ci/userfiles/files/free-spins-coin-master-links_GM406889139.pdfIn PDF document text
    • https://www.myeresults.ng/ci/userfiles/files/free-robux-with-no-verification_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 1

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002fec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FEC 22536 bytes
SHA-256: 08e641a287371d9255bd9e8d455da9c6670d3da6f4df4058c53e56157ee66c0d
font_01_sfnt_off0000623b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x623B 19032 bytes
SHA-256: 8db2f95e46f50690b33d3eaf9e8ef269ae8f17dc905995d48ed4b351b08260ed

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